Theory of machines MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Theory of machines, a fundamental topic in the field of Mechanical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Theory of machines MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Theory of machines mcq questions that explore various aspects of Theory of machines problems. Each MCQ is crafted to challenge your understanding of Theory of machines principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Mechanical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Theory of machines MCQs are your pathway to success in mastering this essential Mechanical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Theory of machines. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Theory of machines knowledge to the test? Let's get started with our carefully curated MCQs!

Theory of machines MCQs | Page 24 of 48

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Q231.
In a reciprocating engine, usually __________ of the reciprocating masses are balanced.

a.

one-half

b.

two-third

c.

three-fourth

d.

whole

Discuss
Answer: (b).two-third
Q232.
The cam follower generally used in air-craft engines is

a.

knife edge follower

b.

flat faced follower

c.

spherical faced follower

d.

roller follower

Discuss
Answer: (d).roller follower
Q233.
In a locomotive, the maximum magnitude of the unbalanced force along the perpendicular to the line of stroke, is known as

a.

tractive force

b.

swaying couple

c.

hammer blow

d.

none of these

Discuss
Answer: (c).hammer blow
Q234.
If ฯ‰/ฯ‰n is very low for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach

a.

0°

b.

90°

c.

180°

d.

360°

Discuss
Answer: (a).0°
Q235.
The factional torque for square thread at the mean radius r while raising load W is given by

a.

T = W.r tan(ฯ† - ฮฑ)

b.

T = W.r tan(ฯ† + ฮฑ)

c.

T = W.r tan ฮฑ

d.

T = W.r tan ฯ†

Discuss
Answer: (b).T = W.r tan(ฯ† + ฮฑ)
Q236.
Whitworth quick return motion mechanism is an inversion of a double slider crank chain.

a.

Correct

b.

Incorrect

c.

Can't say

d.

None of these

Discuss
Answer: (b).Incorrect
Q237.
The maximum gyroscopic couple acting on the ship tends to shear the holding down bolts.

a.

Correct

b.

Incorrect

c.

Can't say

d.

None of these

Discuss
Answer: (a).Correct
Q238.
In a multiple V-belt drive, when a single belt is damaged, it is preferable to change the complete set to

a.

reduce vibration

b.

reduce slip

c.

ensure uniform loading

d.

ensure proper alignment

Discuss
Answer: (c).ensure uniform loading
Q239.
A force acting in the opposite direction to the motion of the body is called force of friction.

a.

True

b.

False

c.

Can't say

d.

None of these

Discuss
Answer: (a).True
Q240.
A shaft has two heavy rotors mounted on it. The transverse natural frequencies, considering each of the rotor separately, are 100 Hz and 200 Hz respectively. The lowest critical speed is

a.

5367 r.p.m.

b.

6000 r.p.m.

c.

9360 r.p.m.

d.

12000 r.p.m.

Discuss
Answer: (a).5367 r.p.m.
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